One camera that's putting out good reviews on the Micro Four Thirds side is the new Olympus OM-D E-M5 (see it here on Amazon). A nice upgrade for PEN shooters. The in camera stabilization is a big plus for people who want to use older or aftermarket lenses. If you're looking to get one sooner than later, there's one OM-D (Black) with 14-42mm available for normal retail price via eBay, but ends in 50 minutes. Find it here.

Olympus OM-D E-M5 Black with 14-42mm Lens

[Update] If you missed it, you might be able to find a few here: Olympus OM-D E-M5 16MP Live MOS Interchangeable Lens Camera with 3.0-Inch Tilting OLED Touchscreen and 14-42mm Lens (Black)